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drm/amd/display: Add const to a function

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When calling the dc_link_bw_kbps_from_raw_frl_link_rate_data from
amdgpu_dm, GCC highlighted the following issue:

  In function ‘get_conv_frl_bw’:
  error: passing argument 1 of
  ‘dc_link_bw_kbps_from_raw_frl_link_rate_data’ discards ‘const’ qualifier
  from pointer target type [-Werror=discarded-qualifiers]
  997 |                                 aconnector->dc_link->dc,

This commit fix this issue by making DC a constant variable since we
only use it to invoke the function
bw_kbps_from_raw_frl_link_rate_data().

Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rodrigo Siqueira
2023-02-28 15:53:10 -07:00
committed by Alex Deucher
parent 28e5c9d601
commit c964b86e32
2 changed files with 2 additions and 4 deletions
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3
drivers/gpu/drm/amd/display/dc/core/dc_link_exports.c
View File

@@ -285,8 +285,7 @@ int dc_link_aux_transfer_raw(struct ddc_service *ddc,
ddc, payload, operation_result);
}
uint32_t dc_link_bw_kbps_from_raw_frl_link_rate_data(
struct dc *dc, uint8_t bw)
uint32_t dc_link_bw_kbps_from_raw_frl_link_rate_data(const struct dc *dc, uint8_t bw)
{
return dc->link_srv->bw_kbps_from_raw_frl_link_rate_data(bw);
}

3
drivers/gpu/drm/amd/display/dc/dc.h
View File

@@ -1768,8 +1768,7 @@ void dc_restore_link_res_map(const struct dc *dc, uint32_t *map);
bool dc_link_update_dsc_config(struct pipe_ctx *pipe_ctx);
/* translate a raw link rate data to bandwidth in kbps */
uint32_t dc_link_bw_kbps_from_raw_frl_link_rate_data(
struct dc *dc, uint8_t bw);
uint32_t dc_link_bw_kbps_from_raw_frl_link_rate_data(const struct dc *dc, uint8_t bw);
/* determine the optimal bandwidth given link and required bw.
* @link - current detected link